Heating assembly and aerosol generating device

Abstract

The utility model relates to the technical field of aerosol generation. The utility model provides a heating assembly and an aerosol generating device. The heating assembly comprises a support assembly and a heating pipe. The support assembly comprises a first support and a second support. A heating cavity is formed in the heating pipe; the heating pipe is used for heating the aerosol matrix into aerosol; one axial end of the heating pipe abuts against the first support, and the other axial end of the heating pipe abuts against the second support. At least one axial end of the heating pipe is provided with a first fool-proof part, the first support and / or the second support are / is provided with a second fool-proof part, and the first fool-proof part is used for being matched with the second fool-proof part, so that the heating pipe and the support assembly have the unique relative position. According to the heating assembly and the aerosol generating device, mistakes such as reverse assembly and assembly deviation during production and assembly of the heating pipe can be prevented, and the consistency of the aerosol generating device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generating device. BACKGROUND

[0002] An aerosol generating device is a device that heats an aerosol substrate to make the aerosol substrate generate an aerosol. Generally, the aerosol generating device uses a heating tube to heat the aerosol substrate. The aerosol substrate is inserted into the heating tube, and the heating tube surrounds the outer periphery of the aerosol substrate to heat the aerosol substrate in a circumferential direction.

[0003] In the production and assembly of the heating tube, the heating tube may be upside down due to various negligence, which may cause the heating area of the heating tube to be upside down, or the heating tube to be assembled with deviation in the horizontal direction, which may cause the hot spot of the heating area to be horizontally offset, and finally may cause the aerosol generating device to have poor consistency. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a heating assembly and an aerosol generating device, which solves the problem of poor consistency of the aerosol generating device caused by poor assembly of the heating tube.

[0005] In order to solve the above technical problem, the present application provides a heating assembly, which is applied to an aerosol generating device. The heating assembly comprises a support assembly and a heating tube. The support assembly comprises a first support and a second support. The heating tube forms a heating cavity inside. The heating cavity is used to accommodate an aerosol substrate. The heating tube is used to heat the aerosol substrate into an aerosol. One end of the heating tube in the axial direction abuts against the first support, and the other end of the heating tube in the axial direction abuts against the second support.

[0006] At least one end of the heating tube in the axial direction is provided with a first foolproof part. The first support and / or the second support is provided with a second foolproof part. The first foolproof part is used to cooperate with the second foolproof part to make the heating tube and the support assembly have a unique relative position.

[0007] In one embodiment, only one end of the heating tube in the axial direction is provided with a first foolproof part, and only one of the first support and the second support is provided with a second foolproof part. One of the first foolproof part and the second foolproof part is a protrusion, and the other is a recess. The protrusion is used to be embedded in the recess.

[0008] In one embodiment, the number of the protrusions and the number of the recesses are both multiple and the same. The multiple protrusions are arranged at intervals, and the multiple recesses are arranged at intervals. Each protrusion is used to be embedded in the corresponding recess.

[0009] In an embodiment, only one end of the axial direction of the heating tube is provided with the first foolproof part, and only one of the first support and the second support is provided with the second foolproof part; the first foolproof part and the second foolproof part each include at least one protrusion and at least one recess, the protrusion of the first foolproof part is used for embedding the recess of the second foolproof part, and the recess of the first foolproof part is used for embedding the protrusion of the second foolproof part.

[0010] In an embodiment, the first support and the second support are respectively provided with different second foolproof parts, the two ends of the axial direction of the heating tube are respectively provided with different first foolproof parts, the first foolproof part close to the first support of the heating tube is used for embedding the second foolproof part of the first support, and the first foolproof part close to the second support of the heating tube is used for embedding the second foolproof part of the second support.

[0011] In an embodiment, the first support and the second support are respectively provided with the same second foolproof part, the two ends of the axial direction of the heating tube are respectively provided with the same first foolproof part, which are respectively a first sub-foolproof part and a second sub-foolproof part, the projections of the first sub-foolproof part and the second sub-foolproof part on the radial cross section of the heating tube do not completely coincide, and are not central symmetric relative to the center point of the radial cross section.

[0012] In an embodiment, the heating tube includes a base body and a heating circuit, the base body is tubular, a heating cavity is formed in the base body, and the heating circuit is arranged on the side surface of the base body and used for generating heat by being electrified.

[0013] In an embodiment, the first support is provided with a socket, the heating cavity is arranged opposite to the socket, and the socket is used for inserting the aerosol substrate into the heating cavity.

[0014] The first support has a mounting cavity communicating with the socket, the heating tube is arranged in the mounting cavity and is arranged in a spaced manner with the cavity wall of the mounting cavity, the second support is sealingly connected to the end of the first support away from the socket, and the second support is provided with an air inlet channel communicating with the heating cavity.

[0015] In an embodiment, the first support is provided with a first clamping part, the second support is provided with a second clamping part, and the first clamping part is clamped with the second clamping part.

[0016] To solve the above technical problems, the present application provides an aerosol generating device, which includes the heating assembly according to any one of the above.

[0017] The heating assembly of the present application comprises a support assembly and a heating pipe. The support assembly comprises a first support and a second support; the heating pipe forms a heating cavity inside, which is used for accommodating aerosol substrate; the heating pipe is used for heating the aerosol substrate into aerosol; one end of the heating pipe in the axial direction abuts against the first support, and the other end of the heating pipe in the axial direction abuts against the second support; at least one end of the heating pipe in the axial direction is provided with a first foolproof part, and the first support and / or the second support is provided with a second foolproof part; the first foolproof part is used for cooperating with the second foolproof part to make the heating pipe and the support assembly have a unique relative position. The first foolproof part provided on the heating pipe can cooperate with the second foolproof part of the support assembly on which the heating pipe is installed, so that the heating pipe and the support assembly have a unique relative position, which plays the role of foolproof and positioning of the heating pipe, can prevent mistakes such as reverse installation and assembly deviation during production and assembly of the heating pipe, and improves the consistency of the aerosol generating device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural schematic diagram of a heating assembly provided for an embodiment of the present application is shown;

[0019] Figure 2 An exploded view of a heating assembly provided for an embodiment of the present application is shown;

[0020] Figure 3 A sectional view of a heating assembly and aerosol substrate provided for an embodiment of the present application is shown;

[0021] Figure 4 A structural schematic diagram of a heating pipe provided for an embodiment of the present application is shown;

[0022] Figure 5 A structural schematic diagram of a second support provided for an embodiment of the present application is shown.

[0023] Reference signs: heating assembly 10, support assembly 11, first support 111, insertion hole 1111, mounting cavity 1112, first clamping part 1113, second support 112, air inlet channel 1121, second clamping part 1122, second foolproof part 113, heating pipe 12, heating cavity 121, substrate 122, heating wire 123, first foolproof part 124, aerosol substrate 20. DETAILED DESCRIPTION

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0025] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0026] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0027] The terms "parallel" and "perpendicular," etc., are specific to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between A and B ranging from 0° to 10°. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between A and B ranging from 80° to 100°. The directional terms used in the embodiments of this application, such as "upper," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] This application provides an aerosol generating device for heating an aerosol matrix 20 to generate aerosols. The aerosol generating device includes a heating component 10, and may also include a housing, a power supply, a circuit board, and other components. The heating component 10, power supply, and circuit board are all housed within the housing. The power supply and circuit board are electrically connected to the heating component 10. The power supply provides power to the circuit board, and the control circuit on the circuit board controls the heating of the heating component 10.

[0029] like Figures 1-3 As shown, the heating assembly 10 includes a support assembly 11 and a heating tube 12. The support assembly 11 is used to mount the heating tube 12 and to retain the heat from the heating tube 12 within the support assembly 11 to improve heating efficiency. Therefore, the support assembly 11 is generally made of a material with low thermal conductivity, such as polyetheretherketone (PEEK).

[0030] A heating chamber 121 is formed within the heating tube 12. The heating chamber 121 is used to contain the aerosol matrix 20, and the heating tube 12 is used to heat the aerosol matrix 20 into an aerosol. Generally, the aerosol matrix 20 is solid and roughly cylindrical in shape. The aerosol matrix 20 may include a matrix section, a cooling section, and a suction section connected in sequence. The matrix section is disposed within the heating chamber 121 and includes a grass-like matrix. When heated, the grass-like matrix can generate aerosols. The cooling section can lower the temperature of the aerosol generated by the matrix section. The suction section can be located outside the aerosol generating device so that the user can suction the aerosol generated by the matrix section through the suction section.

[0031] In one embodiment, such as Figure 4 As shown, the heating tube 12 includes a substrate 122 and a heating circuit 123. The substrate 122 is tubular, and a heating cavity 121 is formed inside the substrate 122. The heating circuit 123 is disposed on the side surface of the substrate 122 and is used to generate heat by passing electricity through it. The heating circuit 123 can be, for example, a heating film, a heating plate, a heating mesh, etc.

[0032] The type of heating tube 12 is not limited to the resistance heating described above. The heating tube 12 can also be electromagnetic induction heating. The heating tube 12 can be configured as a magnetic induction body, and a magnetic induction coil can be set outside the heating tube 12. The magnetic field generated by the magnetic induction coil can make the heating tube 12 heat up, and the heating tube 12 transfers the heat to the aerosol matrix 20.

[0033] like Figures 2-3As shown, the bracket assembly 11 includes a first bracket 111 and a second bracket 112. One axial end of the heating tube 12 abuts against the first bracket 111, and the other axial end of the heating tube 12 abuts against the second bracket 112. That is, the first bracket 111 and the second bracket 112 can fix the heating tube 12 at both ends of the heating tube 12 in the axial direction.

[0034] like Figure 4 and Figure 5 As shown, at least one end of the heating tube 12 in the axial direction is provided with a first anti-mistake part 124. That is, the first anti-mistake part 124 can be provided at only one end of the heating tube 12 in the axial direction, or the first anti-mistake part 124 can be provided at both ends in the axial direction. The axial end of the heating tube 12 can refer to the end of the side surface of the heating tube 12 or the bottom surface of the heating tube 12.

[0035] The first support 111 and / or the second support 112 are provided with a second anti-mistake part 113. The second anti-mistake part 113 is provided in correspondence with the first anti-mistake part 124. When the heating tube 12 is provided with the first anti-mistake part 124 at one end near the first support 111, the second anti-mistake part 113 is provided on the first support 111. When the heating tube 12 is provided with the first anti-mistake part 124 at one end near the second support 112, the second anti-mistake part 113 is provided on the second support 112.

[0036] The first anti-mistake part 124 is used to cooperate with the second anti-mistake part 113 to ensure a unique relative position between the heating tube 12 and the support assembly 11. This application provides the first anti-mistake part 124 on the heating tube 12, which cooperates with the second anti-mistake part 113 on the support assembly 11 where the heating tube 12 is mounted, ensuring a unique relative position between the heating tube 12 and the support assembly 11. This serves to prevent and position the heating tube 12, preventing errors such as reverse installation or assembly deviations during production and assembly, and improving the consistency of the aerosol generating device.

[0037] In one embodiment, such as Figure 4 and Figure 5 As shown, the heating tube 12 has a first anti-mistake part 124 at only one end along its axial direction, and only one of the first bracket 111 and the second bracket 112 has a second anti-mistake part 113. One of the first anti-mistake part 124 and the second anti-mistake part 113 is a protrusion, and the other is a recess; the protrusion is used to fit into the recess. Preferably, the protrusion and the recess can be roughly block-shaped, for example, they can be arc-shaped blocks. This application does not impose specific limitations on the shape of the protrusion and the recess; any shape that can achieve the anti-mistake function is acceptable.

[0038] Furthermore, the number of protrusions and recesses can both be multiple and equal, with multiple protrusions spaced apart and multiple recesses spaced apart. Preferably, the protrusions and recesses are arranged at intervals along the circumferential direction of the heating tube 12. Each protrusion is used to embed into a corresponding recess. Increasing the number of protrusions and recesses can improve the connection stability between the heating tube 12 and the support assembly 11.

[0039] In one embodiment, when the heating tube 12 has a first anti-mistake part 124 at only one end along its axial direction, and only one of the first bracket 111 and the second bracket 112 has a second anti-mistake part 113, both the first anti-mistake part 124 and the second anti-mistake part 113 include at least one protrusion and at least one recess. The protrusion of the first anti-mistake part 124 is used to embed into the recess of the second anti-mistake part 113, and the recess of the first anti-mistake part 124 is used to embed into the protrusion of the second anti-mistake part 113. Similarly, by giving the first anti-mistake part 124 and the second anti-mistake part 113 multiple forms of anti-mistake structures, the connection stability between the heating tube 12 and the bracket assembly 11 can be improved.

[0040] In one embodiment, the first bracket 111 and the second bracket 112 are respectively provided with different second anti-mistake portions 113, and the two ends of the heating tube 12 along the axial direction are respectively provided with different first anti-mistake portions 124. The "different" can refer to different shapes or different sizes. The first anti-mistake portion 124 of the heating tube 12 near the first bracket 111 is used to embed into the second anti-mistake portion 113 of the first bracket 111, and the first anti-mistake portion 124 of the heating tube 12 near the second bracket 112 is used to embed into the second anti-mistake portion 113 of the second bracket 112. Therefore, by providing anti-mistake structures on the heating tube 12, the first bracket 111, and the second bracket 112, the possibility of the heating tube 12 being installed backwards during assembly is further prevented, reducing the defect rate.

[0041] In one embodiment, the first bracket 111 and the second bracket 112 are respectively provided with the same second anti-mistake part 113, and the two ends of the heating tube 12 in the axial direction are respectively provided with the same first anti-mistake part 124. The above-mentioned "same" can mean that the shape and size are the same. The first anti-mistake part 124 at both ends of the heating tube 12 in the axial direction are respectively the first sub-anti-mistake part and the second sub-anti-mistake part. The projections of the first sub-anti-mistake part and the second sub-anti-mistake part on the radial cross-section of the heating tube 12 do not completely coincide, and they are not centrally symmetrical with respect to the center point of the radial cross-section. Therefore, even if the heating tube 12 is installed in reverse, the first sub-anti-mistake part and the second anti-mistake part 113 of the second bracket 112 cooperate, but the second sub-anti-mistake part cannot cooperate with the first anti-mistake part 124 of the first bracket 111. This can also prevent the possibility of the heating tube 12 being installed in reverse during assembly.

[0042] In one embodiment, such as Figure 3As shown, the first bracket 111 is provided with an insertion hole 1111, and the heating chamber 121 is arranged opposite to the insertion hole 1111. The insertion hole 1111 is used to allow the aerosol matrix 20 to be inserted into the heating chamber 121.

[0043] The first bracket 111 has a mounting cavity 1112 with a connecting socket 1111. The heating tube 12 is disposed in the mounting cavity 1112 and spaced apart from the cavity wall of the mounting cavity 1112. Thus, an air layer can be formed between the heating tube 12 and the cavity wall of the mounting cavity 1112, which can provide a certain degree of heat insulation. A heat insulation layer can also be provided on the cavity wall of the mounting cavity 1112 to prevent the heat from the heating tube 12 from escaping from the bracket assembly 11. The second bracket 112 is sealed to the end of the first bracket 111 away from the socket 1111. The second bracket 112 has an air inlet channel 1121 that connects to the heating cavity 121. The airflow in the air inlet channel 1121 can enter the aerosol matrix 20 in the heating cavity 121.

[0044] In one embodiment, such as Figure 2 and Figure 5 As shown, the first bracket 111 is provided with a first snap-fit ​​portion 1113, and the second bracket 112 is provided with a second snap-fit ​​portion 1122. The first snap-fit ​​portion 1113 and the second snap-fit ​​portion 1122 snap together. Alternatively, the first snap-fit ​​portion 1113 and the second snap-fit ​​portion 1122 can be engaged using a protrusion and a recess. By providing mutually engaging snap-fit ​​portions on the first bracket 111 and the second bracket 112, positioning between the first bracket 111 and the second bracket 112 can be achieved, preventing assembly deviations and further improving the assembly consistency of the aerosol generating device.

[0045] The above examples illustrate this application only to aid in understanding the invention and are not intended to limit the scope of the application. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the concept of this application.

Claims

1. A heating component, applied in an aerosol generating device, characterized in that, include: A support assembly, the support assembly including a first support and a second support; And a heating tube, wherein a heating cavity is formed inside the heating tube, the heating cavity being used to contain the aerosol matrix; The heating tube is used to heat the aerosol matrix into an aerosol; one axial end of the heating tube abuts against the first support, and the other axial end of the heating tube abuts against the second support. At least one end of the heating tube is provided with a first anti-fooling part along its axial direction, and the first bracket and / or the second bracket is provided with a second anti-fooling part. The first anti-fooling part is used to cooperate with the second anti-fooling part so that the heating tube and the bracket assembly have a unique relative position.

2. The heating assembly according to claim 1, characterized in that, The heating tube has a first anti-foolproof part at only one end along its axial direction, and only one of the first bracket and the second bracket has a second anti-foolproof part; one of the first anti-foolproof part and the second anti-foolproof part is a protrusion and the other is a recess, and the protrusion is used to fit into the recess.

3. The heating assembly according to claim 2, characterized in that, The number of protrusions and the number of recesses are both multiple and the same. The multiple protrusions are spaced apart, and the multiple recesses are spaced apart. Each protrusion is used to embed into the corresponding recess.

4. The heating assembly according to claim 1, characterized in that, The heating tube has a first anti-mistake part at only one end along its axial direction, and only one of the first bracket and the second bracket has a second anti-mistake part; both the first anti-mistake part and the second anti-mistake part include at least one protrusion and at least one recess, the protrusion of the first anti-mistake part is used to embed into the recess of the second anti-mistake part, and the recess of the first anti-mistake part is used to embed into the protrusion of the second anti-mistake part.

5. The heating assembly according to claim 1, characterized in that, The first bracket and the second bracket are respectively provided with different second anti-mistake parts, and the two ends of the heating tube are respectively provided with different first anti-mistake parts. The first anti-mistake part of the heating tube near the first bracket is used to embed into the second anti-mistake part of the first bracket, and the first anti-mistake part of the heating tube near the second bracket is used to embed into the second anti-mistake part of the second bracket.

6. The heating assembly according to claim 1, characterized in that, The first bracket and the second bracket are respectively provided with the same second anti-mistake part, and the two ends of the heating tube are respectively provided with the same first anti-mistake part, namely the first sub-anti-mistake part and the second sub-anti-mistake part. The projections of the first sub-anti-mistake part and the second sub-anti-mistake part on the radial cross-section of the heating tube do not completely coincide, and are non-centrally symmetrical with respect to the center point of the radial cross-section.

7. The heating assembly according to any one of claims 1-6, characterized in that, The heating tube includes a substrate and a heating circuit. The substrate is tubular and forms the heating cavity within it. The heating circuit is disposed on the side surface of the substrate and is used to generate heat by passing electricity through it.

8. The heating assembly according to any one of claims 1-6, characterized in that, The first bracket is provided with an insertion hole, and the heating chamber is disposed opposite to the insertion hole. The insertion hole is used to allow the aerosol matrix to be inserted into the heating chamber. The first bracket has a mounting cavity that communicates with the socket. The heating tube is disposed in the mounting cavity and spaced apart from the cavity wall of the mounting cavity. The second bracket is sealed to the end of the first bracket away from the socket. The second bracket has an air inlet channel that communicates with the heating cavity.

9. The heating assembly according to claim 8, characterized in that, The first bracket is provided with a first snap-fit ​​part, and the second bracket is provided with a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part snap-fit ​​together.

10. An aerosol generating device, characterized in that, Includes the heating assembly as described in any one of claims 1-9.

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